10^15 = 1,000,000,000,000,000 (one quadrillion).
10^15 power
"Second power" means that you multiply something with itself. In this case, (10 + 15) (10 + 15).
It is: 1.3*10^15 = 1,300,000,000,000,000
10 to the power of -15 is 1/10^15. (1/1,000,000,000,000,000 [15 zeroes])It can also be written as 0.000000000000001 (There are 15 zeroes).OR -1,000,000,000,000,000 (15 zeroes).
1000000000000000000 that is the answer
15 x 10-3 = 15 ÷ 103 = 15 ÷ 1000 = 0.015
25
10 to the 63rd power
25
10 to the power of 15 when multiplying items with the same base (in this case 10) you simply add the powers
102 + 15 => 100+15 => 115 ans